Home / 1,935.05-2,900.76-702.15

Finding the Fourth Proportional to 1,935.05, 2,900.76 and 702.15

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Solution

The fourth proportional to 1,935.05, 2,900.76 and 702.15 is: 1,052.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.05 : 2,900.76 = 702.15 : x
  2. Step 2: Convert to fraction form
    1,935.05/2,900.76 = 702.15/x
  3. Step 3: Cross multiply
    1,935.05x = 2,900.76 × 702.15
  4. Step 4: Simplify right side
    1,935.05x = 2,036,768.63
  5. Step 5: Solve for x
    x = 2,036,768.63/1,935.05
  6. Step 6: Final answer
    x = 1,052.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.